tag:blogger.com,1999:blog-6609536178570975752.post5026347181855477409..comments2024-01-12T00:32:20.149-08:00Comments on The Overhead Wire: When Fitness Centers are Like CatenariesPantograph Trolleypolehttp://www.blogger.com/profile/17833159138533550544noreply@blogger.comBlogger7125tag:blogger.com,1999:blog-6609536178570975752.post-69427239045209380722009-06-30T13:52:01.344-07:002009-06-30T13:52:01.344-07:00Perhaps the justification for the Geary BRT projec...Perhaps the justification for the Geary BRT project in terms of cost per mile for an all surface light rail option must be based on the Third Street LRT project. But then again I may only be speculating, and I generally don't consider BRT to be "just as good" as LRT.Matt Fishernoreply@blogger.comtag:blogger.com,1999:blog-6609536178570975752.post-2470157186445587802009-06-30T12:51:02.912-07:002009-06-30T12:51:02.912-07:00Peter,
There are two ways to suspend an electric ...Peter,<br /><br />There are two ways to suspend an electric wire above the track - they are direct suspension in which you support the wire with span wires and/or brackets and catenary in which you support the electric wire by hanging it from another parallel wire such that it is perfectly flat. Doing this is more expensive but allows operation at more than 35 MPH. It really is a question of what you want the system to be able to do.<br /><br />For a system like Muni Metro* with its average 9 MPH speed, direct suspension is the way to go. for a system like, say, Sacramento's which replicates Sacramento's interurban system which also used catenary from the beginning you want catenary. If you want to find the source of excessive costs, look toward the stations.<br /><br />*Muni actually uses both direct suspension and catenary as there are 50 MPH segments on muni's lines.Winstonhttps://www.blogger.com/profile/00043006960450523372noreply@blogger.comtag:blogger.com,1999:blog-6609536178570975752.post-8501948224425648672009-06-30T11:47:36.452-07:002009-06-30T11:47:36.452-07:00a fitness center costs next to nothing, relative t...a fitness center costs next to nothing, relative to the total capital and operating costs of the apartment/housing complex.<br /><br />so it's really seems inconsequential to me that a developer adds it -- it's extremely low cost, and lets them tout an amenity. <br /><br />is this the case for catenary?Peterhttps://www.blogger.com/profile/16319342837525619844noreply@blogger.comtag:blogger.com,1999:blog-6609536178570975752.post-12001476615947780202009-06-30T11:27:06.710-07:002009-06-30T11:27:06.710-07:00A single wire, which was used in most streetcar sy...A single wire, which was used in most streetcar systems in this country for the first half of the 20th century.kenfhttps://www.blogger.com/profile/08276884726616782475noreply@blogger.comtag:blogger.com,1999:blog-6609536178570975752.post-43366221892975503022009-06-30T08:21:45.404-07:002009-06-30T08:21:45.404-07:00ok, i'll be the guinea pig -- what do you use ...ok, i'll be the guinea pig -- what do you use instead of the catenary? nothing? what powers the trains? the new experimental designs? deisel?Peterhttps://www.blogger.com/profile/16319342837525619844noreply@blogger.comtag:blogger.com,1999:blog-6609536178570975752.post-63834382126136116102009-06-30T07:58:42.414-07:002009-06-30T07:58:42.414-07:00The cost per mile on American rail transit systems...The cost per mile on American rail transit systems is ridiculous. I can't figure it out. I would love to be given carte blanche to take the axe to some of these budgets. We've got to figure out how to bring the price down.The Urbanophilehttps://www.blogger.com/profile/18094204641794131438noreply@blogger.comtag:blogger.com,1999:blog-6609536178570975752.post-39234503033432119452009-06-30T04:26:00.767-07:002009-06-30T04:26:00.767-07:00Well, some of us do exercise on a regular basis.Well, some of us do exercise on a regular basis.Frank Gerratanahttps://www.blogger.com/profile/02397983770195191826noreply@blogger.com